Verification of CL-Out’s Effectiveness at a New Jersey Industrial Site - Case Study

Project Summary
Industrial solvents were found in the ground water at a former industrial site on an unused airfield in New Jersey. The contamination was mainly found in ground water in thick coastal sediments. Prior to selection of a full-scale remedy, a pilot study was completed to verify the effectiveness of CL-Out bioremediation and to develop site-specific performance information for the full-scale remediation design. The pilot study consisted of a single injection of CL-Out microbes into the aquifer and sampling ground water at various distance around the injection points. The ground water sampling results showed that the TCE concentrations decreased 66% 40 feet down gradient of the injection point. The TCE was destroyed without producing vinyl chloride as a by product. With the demonstrated success of bioremediation at this site, the full-scale application of CL-Out bioremediation is scheduled to begin in the first quarter of 2010.